Adjustable exercise weight equipment

ABSTRACT

A lot of space and material is typically used to have a full range of exercise weights. An adjustable exercise weight is herein provided to save space and material. The exercise weight, for example, can be dumbbell or a kettlebell or some other type of exercise apparatus. It includes a housing that has opposingly angled inner surfaces. Removable weight pieces are shaped to wedge between the opposingly angled inner surfaces, and the housing supports the weight pieces. A movable holder secures the weight pieces and holds the weight pieces within the housing.

CROSS-REFERENCE TO RELATED APPLICATION(S)

The present application claims priority to U.S. Provisional Application No. 63/054,996, filed on Jul. 22, 2020, and titled “Adjustable Exercise Weight Equipment”, the entire contents of which are herein incorporated by reference.

TECHNICAL FIELD

The following generally relates to exercise equipment, and more particularly to weight training equipment that has weights that can be added and removed to adjust the weight.

DESCRIPTION OF THE RELATED ART

People use weight training equipment when exercising. Examples of weight training equipment include dumbbells, kettlebells, and barbells. It is desirable to have a range of weights. In one approach, there may be a set of dumbbells, with each pair of dumbbells having different weights (e.g., 5 lbs, 10 lbs, 12 lbs, 15 lbs, 20 lbs, 25 lbs, 30 lbs, 35 lbs, 40 lbs, 45 lbs, 50 lbs, 55 lbs, etc.). These sets of dumbbells take up a lot of space. Similar issues apply to kettlebells and other free weights.

Adjustable dumbbells are used to reduce the number of different dumbbells and save space. For example, a weight system is provided that includes a handle, weight discs each with a hole in the middle, and collars. The handle slides through the hole in the weight discs, and the collars are used to hold the weight discs in place.

In an example embodiment, some adjustable dumbbells use a series of rotatable latching plates that are connected by an axial rod. The latching plates rotate to lock certain plates into place, depending on the rotated positions of the latching plates. Other adjustable dumbbells include removable plates that are locked into place using several pins; removing certain pins removes certain corresponding weights from the dumbbell. Yet some other adjustable dumbbells have plates that are screwed onto a centre rod.

These mechanisms for adjustable dumbbells also are used for kettlebells.

BRIEF DESCRIPTION OF THE DRAWINGS

Embodiments will now be described by way of example only with reference to the appended drawings wherein:

FIG. 1 is a top perspective view of an adjustable kettlebell, according to an example embodiment.

FIG. 2 is a bottom perspective view of the adjustable kettlebell shown in FIG. 1.

FIG. 3 is a side view of the adjustable kettlebell shown in FIG. 1.

FIG. 4 is front view of the adjustable kettlebell shown in FIG. 1.

FIG. 5 is a bottom view of the adjustable kettlebell shown in FIG. 1.

FIG. 6A is an exploded bottom perspective view of weight plates positioned outside the kettlebell housing; FIG. 6B shows the weight plates moved into the kettlebell housing; FIG. 6C shows the weight plates positioned within the kettlebell housing and a strap undone; and FIG. 6D shows the weight plates positioned within the kettlebell housing and the strap securing the weight plates.

FIG. 7A is an exploded top perspective view of weight plates positioned outside the kettlebell housing; and FIG. 7B is a bottom perspective view of embodiment shown in FIG. 7A.

FIG. 8 is a top perspective view of the kettlebell housing shown in isolation, according to an example embodiment.

FIG. 9 is a side view of the kettlebell housing shown in FIG. 8.

FIG. 10 is a bottom perspective view of the kettlebell housing shown in FIG. 8.

FIG. 11 is a bottom view of the kettlebell housing shown in FIG. 8.

FIG. 12 is a top perspective view of an adjustable dumbbell, according to an example embodiment.

FIG. 13 is a bottom view of the adjustable dumbbell shown in FIG. 12.

FIG. 14 is a front view of the adjustable dumbbell shown in FIG. 12.

FIG. 15 is a bottom view of the adjustable dumbbell shown in FIG. 12.

FIG. 16A is a top perspective view of an adjustable bell with its straps opened, so that the weight plates are not secured. FIG. 16B shows the weight plates sliding out of the dumbbell housing.

FIG. 17 is a top perspective view of the dumbbell housing shown in isolation, according to an example embodiment.

FIG. 18 is a front view of the dumbbell housing shown in FIG. 17.

FIG. 19 is a bottom view of the dumbbell housing shown in FIG. 17.

FIG. 20 is a top perspective view of an adjustable kettlebell that includes a post and collar or clamp, according to an example embodiment.

FIG. 21 is a bottom perspective view of the adjustable kettlebell shown in FIG. 20.

FIG. 22 is a side view of the adjustable kettlebell shown in FIG. 20.

FIG. 23 is front view of the adjustable kettlebell shown in FIG. 20.

FIG. 24 is a bottom view of the adjustable kettlebell shown in FIG. 20.

FIG. 25 is an exploded top perspective view of weight plates positioned outside the kettlebell housing showing the adjustable kettlebell of FIG. 20.

FIG. 26 is an exploded bottom perspective view of weight plates positioned outside the kettlebell housing showing the adjustable kettlebell of FIG. 20.

FIG. 27 is a top perspective view of a kettlebell housing shown in isolation, according to an example embodiment.

FIG. 28 is a bottom perspective view of the kettlebell housing shown in FIG. 27.

FIG. 29 is a bottom view of the kettlebell housing shown in FIG. 27.

FIG. 30 is a perspective view an example embodiment of weight plate shown in isolation.

FIG. 31 is an example flow diagram showing phases of making a housing of a kettlebell using a rigid sheet.

FIG. 32 is an example flow diagram showing phases of making a housing of a kettlebell using two or more rigid sheets.

FIG. 33 is a top perspective view of an adjustable kettlebell that includes a post and collar or clamp, and the weight plates are supported by the post, according to an example embodiment.

FIG. 34 is a bottom perspective view of the adjustable kettlebell shown in FIG. 33.

FIG. 35 is a side view of the adjustable kettlebell shown in FIG. 33.

FIG. 36 is a bottom view of the adjustable kettlebell shown in FIG. 33.

FIG. 37 is an exploded top perspective view of weight plates positioned outside the kettlebell housing showing the adjustable kettlebell of FIG. 33.

FIG. 38 is a side view of an adjustable kettlebell that includes a post and a collar or clamp, and with a circular housing, according to another example embodiment.

FIG. 39 is a side view of an adjustable kettlebell that includes a post and a collar or clamp, and with a rectangular housing, according to another example embodiment.

FIG. 40 is a side view of an adjustable kettlebell that includes a post and a collar or clamp, and with a hexagonal housing, according to another example embodiment.

FIG. 41 is a side view of an adjustable kettlebell that includes a post and a collar or clamp, and with a trapezoidal housing, according to another example embodiment.

FIG. 42 is a front view of an adjustable dumbbell that includes a post and collar or clamp, with circular housings, according to another example embodiment.

FIG. 43 is a front view of an adjustable dumbbell that includes a post and collar or clamp, with octagonal housings, according to another example embodiment.

DETAILED DESCRIPTION

It will be appreciated that for simplicity and clarity of illustration, where considered appropriate, reference numerals may be repeated among the figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the example embodiments described herein. However, it will be understood by those of ordinary skill in the art that the example embodiments described herein may be practiced without these specific details. In other instances, well-known methods, procedures and components have not been described in detail so as not to obscure the example embodiments described herein. Also, the description is not to be considered as limiting the scope of the example embodiments described herein.

As noted above, adjustable dumbbells and kettlebells typically use screw locking mechanisms, rotatable latches, and multiple pins to hold different weight plates in place. However, these mechanisms are bulky and increase the size of the adjustable dumbbell or adjustable kettlebell. It is also herein recognized that these mechanisms are sometimes difficult to use; it takes time to learn how to adjust the mechanisms. Furthermore, the weight plates in some of these adjustable dumbbells or kettlebells wobble and clank against each other, which can disrupt a person's exercise. It is also herein recognized that adjustable dumbbells and kettlebells have the weight plates exposed; this results in more edges, crevices, and corners, which in turn causes more soft tissue pinch points and entanglement risk (e.g. entanglement of string or hair).

An adjustable exercise weight system is provided that includes a housing with opposingly angled inner surfaces, and removable weight pieces that are shaped to wedge between the opposingly angled inner surfaces. The housing supports the weight pieces. A strap wraps around the weight pieces and the strap holds the weight pieces within the housing.

In an example aspect, the adjustable exercise weight system is a free weight. Examples of free weights include dumbbells and kettlebells. In another example, the adjustable exercise weight system is part of an exercise machine.

Turning to FIGS. 1 to 5, an example embodiment of a weight adjustable kettlebell 100 is shown from different views. It includes a kettlebell housing 101 that has inner surfaces that are oppositely angled towards each other to create a wedge. For example, the inner surfaces 102 and 103 are oppositely angled towards each other to create a wedge shape therebetween. Similarly, inner surfaces 105 and 106 are oppositely angled towards each other to create a wedge shape therebetween. An inner upper surface 104 bridges across the two angled inner surfaces 102 and 103. In an example aspect, the inner upper surface 104 is spans horizontally between the tops of the angled inner surfaces 102 and 103.

In the example shown, the inner surface 102 and the inner surface 105 are also oppositely angled towards each other to create another wedge shape therebetween. The inner surface 103 and the inner surface 106 are also oppositely angled towards each other to create another wedge shape therebetween. In other words, there are four wedge shapes formed between the four inner surfaces.

It will be appreciated, however, that in other examples, there are two oppositely angled inner surfaces that one wedge shape therebetween.

The wedge shape or wedge shapes formed between the oppositely angled inner surfaces are used to hold in place one or more weight pieces 107 that are positioned within the housing 101.

The inner surfaces 102, 103, 105, and 106 are shown as being flat surfaces. However, in another example embodiment, these inner surfaces are curved and still function to hold the weight pieces in a wedged manner.

It will be appreciated that the opposingly angled inner surfaces 102, 103, 105, 106 extend in a same direction parallel to each other. For example, this is similar to an octagonal prism, which has elongate rectangular walls or elongate rectangular faces extending in parallel between the two octagon caps.

In the example shown, several weight pieces 107 are held within the housing 101. The weight pieces 107 are removable from the housing and easy to insert within the housing, so that the weight of kettlebell 100 can be adjusted.

In an example aspect, the weight pieces are plates, or weight plates, that have a profile that matches the profile of the inner surfaces of the housing 101. In the example shown, while a given weight plate 107 is positioned in the housing 101, the edges of the given weight plate 107 face and are adjacent to the inner surfaces 102, 103, 105 and 106.

In other words, as best seen in FIG. 6A, which shows several weight plates out of the housing 101, a given weight plate 107 a includes oppositely angled edges 602 that are angled towards each other. The given weight plate 107 a also includes oppositely angled edges 603 that are angled towards each other. The angled edges 602 of the weight plate 107 a rest against the inner surfaces 102 and 103 of the housing, and the angled edges 603 of the weight plate 107 a rest against the inner surfaces 105 and 106 of the housing. In this way, a weight plate 107 is wedged between the inner surface 102 and 103, as well as the inner surfaces 105 and 106.

It will be appreciated that if the inner space defined within the housing were a different shape, then the profile of the weight plate would match so that it could fit within the inner space of the housing. It will also be appreciated that the terms “weight piece” and “weight plate” are herein interchangeably used. It will also be appreciated that the weight piece does not have to be a plate, but can have other profiles (e.g. blocks, prisms, orbs, etc.).

Turning back to FIGS. 1 to 5, the housing 101 also includes an opening 120 to receive the weight piece. For example, the inner surfaces 102, 103, 105, and 106 terminate at an opening positioned on a side of the housing, through which the weight pieces are insertable into the housing.

In an example embodiment, there are two openings 120; one on each opposite side ends of the housing 101. In another example embodiment, there is only one opening 120 on the side of the housing. Using the opening 120, a person can slide in or insert one or more weight pieces into the interior volume (e.g., also the inner space) of the housing.

It will be appreciated that the weight pieces can also have different sizes and weights. For example, different weight amounts include: 1 lb, 3 lbs, 5 lbs, 10 lbs, 20 lbs, etc.

The weight pieces 107 are also held by a strap 108 to keep the weight pieces from falling out of the housing 101. In the example shown, the strap 108 wraps around the weight pieces and stops the weight pieces from falling out of the opening 120.

Although a strap is shown, in a more general example, a movable holder is positioned to contact at least a weight piece positioned closest to the opening. The movable holder laterally secures the weight pieces, including the weight piece positioned closest to the opening, within the housing. In other words, the movable holder stops the weight pieces from sliding side-to-side within the housing. The upward, downward, forward, and backward movements of the weight plates are secured or restricted by the inner surface (or inner surfaces) of the housing, which extend parallel to each other to form an elongate prism. Other examples of movable holders include: a strap, a latch, a clamp, a bolt, a screw mechanism, etc.

As best shown in FIGS. 1 and 2, the housing 101 includes an outer upper surface 109 that is offset to one side of a handle 112, and another outer upper surface 110 that is offset to an opposite side of the handle 112. Between the surfaces 109 and 110 is an upper surface 111, and the handle 112 protrudes from the upper surface 111. The outer upper surface 109 is angled downwards and away from the handle 112. Similarly, the outer upper surface 110 is angled downwards and away from the handle 112. In this way, when a person holds the kettlebell 100 from the handle 112, the person's arm is more comfortably braced against the surface 109 or the surface 110.

As better seen in FIGS. 2, 3 and 5, there is a first notch 114 defined on each of the weight pieces 107. When the weight pieces are aligned within the housing, a first channel 115 is formed between the aligned first notches 114 of the weight pieces and the inner upper surface 113 of the housing. A second notch 116 is defined on each of the weight pieces 107. When the weight pieces are aligned within the housing, a second channel 117 is formed by the aligned second notches 116 of the weight pieces. The strap 108 passes through the first channel 115 and the second channel 117. As shown in FIG. 6, a strap attachment mechanism 118 holds the strap tight. For example, the mechanism 118 is a buckle or a clasp.

The housing further incudes a brace structure 119 that is secured to the inner surface of the housing. The brace structure 119 is a plate or a flange that is located in the middle of the housing's inner space. In an example aspect, the brace structure is also herein referred to as a center flange. In an example aspect, the brace structure is weight bearing, so that it can support the weight of the weight pieces. The brace structure 119 reduces the amount of weight being supported by the strap 108. For example, on one side of the brace structure there is positioned a first set of one or more weight pieces, and on an opposite side of the brace structure there is positioned a second set of one or more weight pieces. When the housing 101 is angled so that the opening 120 is facing up, the first set of one more weight pieces rests on top of the brace structure 119 and is supported by the brace structure 119, while the second set of the one or more weight pieces is positioned below the brace structure 110 and is supported by the strap 108.

Turning to FIG. 6A, the brace structure 119 is more clearly shown unobstructed from the weight pieces. The brace structure 119 also includes a notch 601 that matches the profile of the notch 116 of a given weight piece 107 a.

In the example shown, the brace structure 119 spans and is connected to opposite facing inner side surfaces of the housing 101. This also helps to provide more structural support to the housing 101.

However, in another example embodiment, the brace structure includes one or more protrusions from the inner side surfaces of the housing, and do not connect to each other. This example brace structure, even without spanning the distance between side surfaces, is able to support the weight of the weight pieces.

In FIG. 6A, the weight pieces 107 a, 107 b, 107 c, 107 d are outside the housing 101, and the strap 108 is lose. In FIG. 6B, these weight pieces are passed through the opening 120 of the housing, until they are positioned within the housing (in FIG. 6C). The different attachment mechanisms 118 a, 118 b are then attached together to make the strap 108 tight around the weight plates as shown in FIG. 6D. It will be appreciated that in most orientations of the kettlebell 100, the weight pieces are being supported by the housing 101 and not the strap 108. Only when the kettlebell is tilted in a certain direction (e.g. when the opening 120 is pointed downwards), then the strap acts to hold the weight pieces within the housing.

FIGS. 7A and 7B show other exploded views of the weight pieces outside the housing.

FIGS. 8, 9, 10 and 11 show the housing 101 in isolation. The example of the brace structure 119 is also more clearly shown.

Turning to FIGS. 12, 13, 14, and 15, another example embodiment of an adjustable exercise weight is shown. In particular, this exercise weight is a dumbbell 1200.

The dumbbell includes two housings 1201 that are supported by and connected to opposite ends of a handle 1202. In the example shown, the housings 1201 are identical. Therefore, the components and features of described with respect to one housing 1201 apply to both housings.

The housing 1201 holds removable weight pieces 1204. The housing 1201 includes inner surfaces 1206, 1207, 1208 and 1209 that define at least part of the inner space to hold the weight pieces. The inner surfaces 1206 and 1207 are oppositely angled towards each other to create a wedge shape therebetween. The inner surfaces 1208 and 1209 are oppositely angled towards each other to create a wedge shape therebetween.

In this example embodiment, the inner surfaces 1206 and 1208 are also are oppositely angled towards each other to create a wedge shape therebetween. The inner surfaces 1207 and 1209 are also are oppositely angled towards each other to create a wedge shape therebetween.

Each weight piece 1204 also has oppositely angled sides that fit between the inner surfaces 1206, 1207, 1208 and 1209. In this way, a weight piece is supported by and wedged between the inner surfaces 1206, 1207, 1207, 1209. The wedge support depends on the angle of the housing during a lifting movement. In the orientation shown in FIG. 12, the weight piece is supported by and wedged between the inner surfaces 1208 and 1209.

The inner surfaces 1206, 1207, 1208 and 1209 are shown as being flat surfaces. However, in another example embodiment, these inner surfaces are curved and still function as a wedge to hold the weight pieces.

It will be appreciated that the housing 1201 has an opening 1210 through which the weight pieces 1204 can be inserted or removed from the housing 1201.

The weight pieces 1204 are also held by a strap 1205 to keep the weight pieces from falling out of the housing 1201. In the example shown, the strap 1205 wraps around the weight pieces and stops the weight pieces from falling out of the opening 1210.

Although a strap is shown, in a more general example, a movable holder is positioned to contact at least a weight piece positioned closest to the opening. The movable holder secures the weight pieces, including the weight piece positioned closest to the opening, within the housing. Examples of movable holders include: a strap, a latch, a clamp, a bolt, etc.

The ends of the strap are held fastened together with a buckle 1213.

As will be shown better in FIGS. 16A and 16B, the weight pieces have notches so that, when the weight pieces are aligned, a channel 1211 and an opposite facing channel 1212 are formed. These channels 1211 and 1212 help to keep the strap 1205 in position around the weight pieces 1204.

It will be appreciated that in the orientation shown in FIG. 12, the majority of the weight is supported by the housing 1201 and not the strap 1205.

FIG. 16A shows the strap 1205 being unbuckled, with two parts 1213 a and 1213 b of the buckle being separated from each other. In FIG. 16A, a brace structure 1601 is also better shown. The brace structure 1601 protrudes from the inner surfaces of the housing. In the example shown, the support brace 1601 spans between and connects two opposite facing inner surfaces. However, in other example embodiments, the support brace does not span across the entire inner space of the housing.

In an example aspect, the brace structure is weight bearing, so that it can support the weight of the weight pieces. The brace structure 1601 reduces the amount of weight being supported by the strap 1205. For example, on one side of the brace structure there is positioned a first set of one or more weight pieces, and on an opposite side of the brace structure there is positioned a second set of one or more weight pieces. When the housing 1201 is angled so that the opening 1210 is facing up, the first set of one more weight pieces rests on top of the brace structure 1601 and is supported by the brace structure 1601, while the second set of the one or more weight pieces is positioned below the brace structure 1601 and is supported by the strap 1205.

FIG. 16B shows the weight pieces 1204 being positioned outside of the housing 1201. The shape of a given weight piece 1204 is more clearly shown. It includes angled sides 1602 that sit against the inner surfaces 1206, 1207, 1208 and 1209. Each weight piece also includes notches 1603 that form the channels 1211 and 1212.

In an example aspect, there are four notches 1603 defined respectively on the four sides of a weight piece, so that the weight piece can be put into the housing in any of the four orientations.

FIGS. 17, 18 and 19 show the dumbbell 1200 with the weight pieces 1204 removed. From these views, the example of the brace structure 1601 can be better seen. The brace structure 1601 also includes two opposite facing notches 1701 and 1702, which respectively form part of the channels 1211 and 1212 when the weight pieces are positioned in the housing.

Turning to FIGS. 20 to 24 another example embodiment of a weight adjustable kettlebell 2100 is shown. It includes a kettlebell housing 2101 that has inner surfaces that are oppositely angled towards each other to create a wedge. For example, the inner surfaces 2102 and 2103 are oppositely angled towards each other to create a wedge shape therebetween. Similarly, inner surfaces 2105 and 2106 are oppositely angled towards each other to create a wedge shape therebetween. An inner upper surface 2104 bridges across the two angled inner surfaces 2102 and 2103. In an example aspect, the inner upper surface 2104 is spans horizontally between the tops of the angled inner surfaces 2102 and 2103.

In the example shown, the inner surface 2102 and the inner surface 2105 are also oppositely angled towards each other to create another wedge shape therebetween. The inner surface 2103 and the inner surface 2106 are also oppositely angled towards each other to create another wedge shape therebetween. In other words, there are four wedge shapes formed between the four inner surfaces.

It will be appreciated, however, that in other examples, there are two oppositely angled inner surfaces that one wedge shape therebetween.

The wedge shape or wedge shapes formed between the oppositely angled inner surfaces are used to hold in place one or more weight pieces 2107 that are positioned within the housing 1201.

The inner surfaces 2102, 2103, 2105 and 2106 are shown as being flat surfaces. However, in another example embodiment, these inner surfaces are curved and still function to hold the weight pieces in a wedged manner.

It will be appreciated that the opposingly angled inner surfaces 2102, 2103, 2105, 2106 extend in a same direction parallel to each other. For example, this is similar to an octagonal prism, which has elongated rectangular walls or elongate rectangular faces extending in parallel between the two octagon caps.

In the example shown, several weight pieces 2107 are held within the housing 2101. The weight pieces 2107 are removable from the housing and easy to insert within the housing, so that the weight of kettlebell 2100 can be adjusted.

In an example aspect, the weight pieces are plates, or weight plates, that have a profile that matches the profile of the inner surfaces of the housing 2101. In the example shown, while a given weight plate 2107 is positioned in the housing 2101, the edges (e.g., also called the perimeter surfaces or the perimeter edges) of the given weight plate 2107 face and are adjacent to the inner surfaces 2102, 2103, 2105 and 2106.

In other words, as best seen in FIG. 25, which shows several weight plates out of the housing 2101, a given weight plate 2107 includes oppositely angled edges 2502 that are angled towards each other. The given weight plate 2107 also includes oppositely angled edges 2503 that are angled towards each other. The angled edges 2502 of the weight plate 2107 rest against the upper inner surfaces 2102 and 2103 of the housing, and the angled edges 2503 of the weight plate 2107 rest against the lower inner surfaces 2105 and 2106 of the housing. In this way, a weight plate 2107 is wedged between the inner surfaces 2102 and 2103, as well as the inner surfaces 2105 and 2106.

It will be appreciated that if the inner space defined within the housing were a different shape, then the profile of the weight plate would match so that it could fit within the inner space of the housing.

In an example aspect, as also best seen in FIGS. 25 and 26, each weight plate 107 has an opening 2501 defined therein, through which a bar or post 2108 passes through. The post 2108 (e.g., also herein called a bar) extends horizontally from a brace structure 2119 (e.g., also herein called a center flange). The opening 2501, for example, is sized to at least fit the girth of the post 2018. In another example aspect, the opening 2501 is a vertically elongate slot to facilitate the easy removal of the weight plate from the post, or to facilitate the easy placement of the weight plate onto the post. The elongate slot also helps a user to grasp the weight plate more easily. For example, the user can put their thumb or finger through the slot of the weight plate. Turning briefly to FIG. 30, for example, a weight plate 2107 is shown in isolation and defines therein an elongate slot 3000. It will be appreciated that the shape of the opening 2501 can vary. Examples shapes of the opening 2501 include a square, a circle, a pentagon, a hexagon, and an elongated shape.

Turning to FIGS. 27, 28, and 29, which show the housing 2101 in isolation, it will be appreciated that two posts 2108 extend from in opposite directions the brace structure 2119. In another example embodiment, a single post passes through the brace structure and, in effect, forms two posts 2108 extending in opposite directions from the brace structure. As shown in FIGS. 25 and 26, each post 2108 can have positioned thereon one or multiple weight plates 2107 along the post's length. As best seen in FIG. 24, a collar or clamp 2114 is positioned on the post 2108, which laterally secures the one or more weight plates 2107 between the brace structure 2119 and the collar or clamp 2114. In an example aspect shown, the collar or clamp includes a screw 2115 to tighten the collar or clamp around the post 2108. In another example embodiment, the collar or clamp includes a series of hinges and a lever to tighten the collar or clamp onto the post 2108. It will be appreciated that other tightening mechanisms and other movable holders that can be removably fixed on to the post 2108 to laterally secure weight plates 2107 on the post are applicable to the principles described herein.

In another example embodiment, the post 2108 has a circular cross-section and has screw threads along its length, and so that a threaded collar screws onto the post.

In operation, one or more weight plates are positioned on a given post. The number and mass of the weight plates are selected by the user, according to their desired weightlifting specification. Then a collar or a clamp is positioned on the given post to secure the one or more plates from falling off the post, and more generally, to keep the one or more plates secured within the housing. The one or more weight plates are, for example, added on both posts that extend on opposite sides of the center flange. To remove the one or more weight plates, the collar or the clamp is removed from a given post, the one or more weight plates are removed from the post and housing, and the collar or the clamp is put back onto the given post. This process can be repeated on the opposite facing posts.

Turning back to FIGS. 20 to 24, the housing 2101 also includes an opening 2120 to receive a weight piece or weight plate. In an example embodiment, there are two openings 2120; one on each opposite end of the housing 2101. In another example embodiment, there is only one opening 2120. Using the opening 2120, a person can slide in or insert one or more weight pieces into the inner space of the housing. The collar or clamp 2114 stops the weight pieces 2107 from falling out of the opening 2120.

It will be appreciated that the weight pieces, also herein called weight plates, can have different sizes and weights.

It will be appreciated that the collar or clamp 2114 is an example of a movable holder that is positioned to contact at least a weight piece positioned closest to the opening. The movable holder secures the weight pieces, including the weight piece positioned closest to the opening, within the housing.

As best shown in FIGS. 20 and 21, the housing 2101 also defines therein an opening 2121 at the bottom of the housing. This bottom opening 2121 helps the user to grasp at specific weight plates 2107 when removing weight plates from the housing. The bottom opening 2121 also allows a user to visually see the weight plates 2107 mounted within the housing. This visual information allows the user to confirm or determine the amount of total weight of the kettlebell.

As best shown in FIGS. 20 and 22, the housing 2101 includes an outer upper surface 2109 that is offset to one side of a handle 2112, and another outer upper surface 2110 that is offset to an opposite side of the handle 2112. Between the surfaces 2109 and 2110 is an upper surface 2111, and the handle 2112 protrudes from the upper surface 2111. The outer upper surface 2109 is angled downwards and away from the handle 2112. Similarly, the outer upper surface 2110 is angled downwards and away from the handle 2112. In this way, when a person holds the kettlebell 2100 from the handle 2112, the person's arm is more comfortably braced against the surface 2109 or the surface 2110.

The housing further incudes a brace structure 2119 that is secured to the inner surface of the housing. The brace structure 2119 is a plate or a flange that is located in the middle of the housing's inner space. In an example aspect, the brace structure is weight bearing, so that it can support the weight of the weight pieces. The brace structure 2119 supports the posts 2108 and, in combination with the collars or clamps 2114, laterally holds or secures the weight plates 2107. In the example shown, the brace structure 2119 spans and is connected to opposite facing inner side surfaces of the housing 2101. This also helps to provide more structural support to the housing 2101. This example brace structure, even without spanning the distance between side surfaces, is able to support the posts and support the weight of the weight pieces.

It will be appreciated that the shape of the kettlebell housing can vary from what is shown. For example, the side profile of the example shown in FIG. 22 is similar to an octagonal prism. However, other shapes can be used.

Turning to FIG. 31, an example embodiment of a process for manufacturing the housing 2101 is shown. The process starts with a rigid sheet 3101. This rigid sheet is formed 3102 into a housing 2101. In particular, the forming process includes making one or more bends 3104 or curves to form an elongate prism about a longitudinal axis 3103. For example, multiple parallel bends 3104 are formed into the sheet 3101 to form the housing 2101. Alternatively, a continuous curve is formed into the sheet 2101 to form a volumetric shape around a longitudinal axis 3103.

FIG. 32 shows a similar example process, but at least two sheets 3201 a and 3201 b are used to form the housing 2101. The process includes forming 3202 the curves or bends into the sheets, and then attaching 3203 the formed sheets together. For example, a line 3204 between the two formed sheets are shown. Different approaches for attaching the two formed sheets together can be used, including welding, fasteners, adhesives, etc.

In an example embodiment, the rigid sheet is sheet metal or a metal plate. More generally, the rigid sheet is made of metal. In another example embodiment, the rigid sheet is plastic. In another example embodiment, the rigid sheet is a composite material.

In an example aspect, the rigid sheet has a constant thickness. As a result, the housing has a constant thickness.

It will be appreciated that this process for manufacturing the kettlebell is efficient and economical, while providing an ergonomic form-factor.

Turning to FIGS. 33, 34, 35, 36, and 37, another example embodiment of a kettlebell 3300 is shown. The housing 3301 has attached to it a handle 3302. An internal brace structure 3309 is positioned within the housing 3301. The brace structure 3309 supports a post 3304 that extends laterally towards an opening 3307 that is defined in the side of the housing. Weight plates 3306 can be inserted and removed through the opening 3307. In particular, the weight plates 3306 are stacked laterally, side-by-side, and are supported by the post 3304. A collar or clamp 3305 is removably secured to the post 3304 and can be laterally moved along the post to laterally restrict movement of the weight plates 3306.

In an example aspect, there are two openings 3307 positioned on opposite sides of the housing 3301. There are also two posts 3304 that laterally extend on opposite sides from the brace structure 3309. In an example aspect, the brace structure is attached (e.g., welded) to multiple points on the inner surface of the housing. For example, the brace structure is a flange or a web, which increases the structural rigidity of the housing.

In another example aspect, the housing 3301 defines therein a bottom opening 3308 along the length of the bottom of the housing. Two bottom portions 3303 of the housing are spaced apart from each other, which defines the bottom opening 3308. The bottom portions 3303 support the housing when the kettlebell 3300 is placed on a surface, such as a ground surface. Preferably, although not necessarily, the bottom portions 3303 are flat surfaces to help keep the kettlebell oriented upright when positioned on a ground surface. The bottom opening 3308 helps a user to grasp at one or more specific weight plates 3306 in the lateral stack. The bottom opening 3308 also provides visual access, so that the user can see how much weight is within the housing.

It will be appreciated that in the example kettlebell 3300, the weight plates 3306 are entirely supported by the post or posts 3304. The inner surface of the housing 3301 does not contact the weight plates 3306 nor does the inner surface of the housing directly support the weight of the weight plates. The weight plates 3306 are circular, while the housing 3301 has a different interior profile shape. In the example shown, the housing has a hexagonal interior profile shape, but it will be appreciated that the housing shape can be different. The configuration of the kettlebell 3300 provides housing 3301 that is shaped for ergonomics when a user performs kettlebell exercises. The kettlebell 33000 is versatile as it allows for different shaped weight plates, such as circular weight plates that are more commonly available, to be used with kettlebell. In other words, the weight plates are not necessarily wedged into the inner surfaces of the housing.

Turning to FIG. 38, an example embodiment of a circular shaped housing 3801 is shown. The weight plates 3802 are also circular shaped to fit within the interior volume of the housing. It will be appreciated that the circle shaped housing includes opposingly facing inner surfaces, but there is a continuous transition between these opposing inner faces to form rounded interior surface.

FIG. 39 shows an example embodiment of a rectangular shaped housing 3901. The weight plates 3902 are also rectangular shaped to fit within the interior volume of the housing.

FIG. 40 shows an example embodiment of a hexagonal shaped housing 4001. The weight plates 4002 are also hexagonal shaped to fit within the interior volume of the housing.

FIG. 41 shows an example embodiment of a trapezoidal shaped housing 4101. The weight plates 4102 are also trapezoidal shaped to fit within the interior volume of the housing.

A post and collar or clamp are used to hold the weight plates within the housings shown in the examples in FIGS. 38, 39, 40, and 41. However, another movable holder, such as a strap can be used instead.

In another example embodiment, the weight plates shown in FIGS. 38, 39, 40, and 41 are instead circular-shaped weight plates, or some other shape of weight plates that are differently shaped compared to the profile shape of housing's interior space.

The different shapes of housings are also applicable to dumbbells. Furthermore, it will be appreciated that the features of the post and the collar or clamp can be used to secure weight pieces in a dumbbell configuration.

For example, FIG. 42 shows a front profile view of an example embodiment of a dumbbell, similar to FIG. 14. However, the shape of the housing 4201 is circular, and the weight pieces 4202 are circular to fit within the interior volume of the housing. A handle 4203 extends between the two housings 4201. Instead of a strap, a post 2018 and collar 2114 are used to laterally secure the weight pieces 4202 from falling out of the opening in the housing.

FIG. 43 shows a similar embodiment to FIG. 42, but with an octagonal shaped prism housing 4301. The weight pieces 4302 are also octagonal. A bar or handle 4303 extends between the two housings 4301.

Below are general example embodiments of an adjustable exercise weight system.

In an example embodiment, an adjustable exercise weight includes: a housing comprising one or more inner surfaces that extend horizontally to define an interior volume with an opening on a side of the housing; weight pieces insertable and removable through the opening, wherein the weight pieces are laterally stacked beside each other and are shaped to wedge between the one or more inner surfaces, and the housing supports the weight pieces; and, a laterally adjustable holder to laterally secure the weight pieces within the housing.

In an example aspect, the adjustable exercise weight further includes a brace structure positioned within the housing, and a post laterally extending from the brace structure; wherein the weight pieces comprise an opening defined therein through which the post extends, and the laterally adjustable holder is positioned on the post and secures the weight pieces between the brace structure and the movable holder. In another example aspect, the opening defined in each weight piece is an elongate slot. In another example aspect, the laterally adjustable holder is a collar removably attached to the post. In another example aspect, the brace structure is positioned in a center of the housing, and another post laterally extends from the brace structure in an opposite direction.

In an example aspect of the adjustable exercise weight, the laterally adjustable holder comprises a strap that wraps around the weight pieces and holds the weight pieces within the housing.

In an example aspect of the adjustable exercise weight, the housing is formed from a rigid sheet.

In an example aspect of the adjustable exercise weight, the housing comprises multiple opposingly angled inner surfaces, which are flat surfaces.

In an example aspect of the adjustable exercise weight, the one or more inner surfaces comprise one or more curved surfaces.

In an example aspect, the adjustable exercise weight is a kettlebell. Alternatively, the adjustable exercise weight is part of a dumbbell weight.

In an example aspect of the adjustable exercise weight, the housing includes a bottom portion, and the bottom portion of the housing defines therein a bottom opening that extends laterally along the housing.

In an example aspect of the adjustable exercise weight, the housing includes one or more rigid sheets, and parallel bends are formed in the one or more rigid sheets.

In an example aspect of the adjustable exercise weight, the housing comprises two rigid pieces attached together.

In an example embodiment, an adjustable kettlebell is provided, which includes: a housing comprising opposingly angled inner flat surfaces and at least one opening to receive removable weight pieces; the removable weight pieces that are shaped to wedge between the opposingly angled inner flat surfaces, and the housing supporting the weight pieces; and, a movable holder positioned to contact at least a weight piece positioned closest to the opening, the holder securing the weight pieces, including the weight piece positioned closest to the opening, within the housing.

In an example aspect of the adjustable kettlebell, the movable holder is a strap that wraps around the weight pieces within the housing.

In another example aspect, the adjustable kettlebell further includes a brace structure positioned within the housing, and a post extends from the brace structure; wherein each of the removable weight pieces comprise an opening defined therein through which the post extends, and the movable holder is a clamp that clamps onto the post.

In another example aspect of the adjustable kettlebell, the housing comprises one or more rigid sheets formed around a longitudinal axis of the kettlebell.

In another example aspect of the adjustable kettlebell, the housing comprises a bottom portion, and the bottom portion of the housing defines therein a bottom opening that extends laterally along the housing.

In an example embodiment, an adjustable kettlebell is provided, which includes: a housing defining therein an interior volume that extends laterally to at least one side opening, wherein the at least one side opening is sized to receive weight plates; a post extending laterally from a structure within the housing; the weight plates each have defined therein a hole through which the post extends, and the weight plates are laterally stacked beside each other along the post and are positioned in the interior volume of the housing; a clamp positioned on the post to laterally secure the weight pieces; and, a handle positioned on the housing.

In an example aspect, the weight plates positioned on the post are in spaced relation to one or more interior walls of the housing. In another example aspect, the weight plates are circular, and a cross-section profile of the interior volume is polygonal. In another example aspect, the interior volume of the housing extends between two side openings at opposite ends of the housing, and a second post extends laterally from the structure in an opposite direction from the post. In another example aspect, the housing comprises one or more rigid sheets. In another example aspect, the one or more rigid sheets comprise parallel bends. In another example aspect, the housing comprises a bottom portion, and the bottom portion of the housing defines therein a bottom opening that extends laterally along the housing.

In an example embodiment, an adjustable exercise weight is provided that includes: a housing comprising of opposingly angled inner surfaces; removable weight pieces that are shaped to wedge between the opposingly angled inner surfaces, and the housing supporting the weight pieces; and a strap that wraps around the weight pieces and hold the weight pieces within the housing.

In an example embodiment, an adjustable exercise weight is provided that includes: a housing comprising opposingly angled inner surfaces and at least one opening to receive removable weight pieces; the removable weight pieces that are shaped to wedge between the opposingly angled inner surfaces, and the housing supporting the weight pieces; and a movable holder positioned to contact at least a weight piece positioned closest to the opening, the holder securing the weight pieces, including the weight piece positioned closest to the opening, within the housing.

In an example aspect, the movable holder is a strap. In another example aspect, the movable holder is a clamp. In another example aspect, the movable holder includes a screw mechanism.

In an example embodiment, an adjustable kettlebell weight is provided that includes: a housing comprising opposingly angled inner surfaces; removable weight pieces that are shaped to wedge between the opposingly angled inner surfaces, and the housing supporting the weight pieces; a strap that wraps around the weight pieces and holds the weight pieces within the housing; and a handle positioned on the housing.

In an example embodiment, an adjustable dumbbell weight is provided that comprises: two housings connected to each other on opposite ends of a handle; each of the two housings comprising opposingly angled inner surfaces; removable weight pieces that are shaped to wedge between the opposingly angled inner surfaces, and each of the two housings support the weight pieces; and a movable holder in each of the two housing to hold the weight pieces within each of the two housings.

It will be appreciated that different features of the example embodiments of the apparatus as described herein, may be combined with each other in different ways. In other words, functionality and components may be used together according to other example embodiments, although not specifically stated.

It will also be appreciated that the examples and diagrams used herein are for illustrative purposes only. Different configurations and terminology can be used without departing from the principles expressed herein. For instance, components, shapes and configurations can be added, deleted, modified, or arranged without departing from these principles.

Although the above has been described with reference to certain specific embodiments, various modifications thereof will be apparent to those skilled in the art without departing from the scope of the claims appended hereto. 

1. An adjustable exercise weight comprising: a housing comprising one or more inner surfaces that extend horizontally to define an interior volume with an opening on a side of the housing; weight pieces insertable and removable through the opening, wherein the weight pieces are laterally stacked beside each other and are shaped to wedge between the one or more inner surfaces, and the housing supports the weight pieces; and a laterally adjustable holder to laterally secure the weight pieces within the housing.
 2. The adjustable exercise weight of claim 1 further comprising a brace structure positioned within the housing, and a post laterally extending from the brace structure; wherein the weight pieces comprise an opening defined therein through which the post extends, and the laterally adjustable holder is positioned on the post and secures the weight pieces between the brace structure and the movable holder.
 3. The adjustable exercise weight of claim 2 wherein the opening defined in each weight piece is an elongate slot.
 4. The adjustable exercise weight of claim 2 wherein the laterally adjustable holder is a collar removably attached to the post.
 5. The adjustable exercise weight of claim 2 wherein the brace structure is positioned in a center of the housing, and another post laterally extends from the brace structure in an opposite direction.
 6. The adjustable exercise weight of claim 1 wherein the laterally adjustable holder comprises a strap that wraps around the weight pieces and holds the weight pieces within the housing.
 7. The adjustable exercise weight of claim 1 wherein the housing is formed from a rigid sheet.
 8. The adjustable exercise weight of claim 1 wherein the housing comprises multiple opposingly angled inner surfaces, which are flat surfaces.
 9. The adjustable exercise weight of claim 1 wherein the one or more inner surfaces comprise one or more curved surfaces.
 10. The adjustable exercise weight of claim 1 being a kettlebell weight.
 11. The adjustable exercise weight of claim 1 being part of a dumbbell weight.
 12. The adjustable exercise weight of claim 1 wherein the housing comprises a bottom portion, and the bottom portion of the housing defines therein a bottom opening that extends laterally along the housing.
 13. The adjustable exercise weight of claim 1 wherein the housing comprises one or more rigid sheets, and parallel bends are formed in the one or more rigid sheets.
 14. The adjustable exercise weight of claim 1 wherein the housing comprises two rigid pieces attached together.
 15. An adjustable kettlebell comprising: a housing comprising opposingly angled inner flat surfaces and at least one opening to receive removable weight pieces; the removable weight pieces that are shaped to wedge between the opposingly angled inner flat surfaces, and the housing supporting the weight pieces; a movable holder positioned to contact at least a weight piece positioned closest to the opening, the holder securing the weight pieces, including the weight piece positioned closest to the opening, within the housing.
 16. The adjustable kettlebell of claim 15, wherein the movable holder is a strap that wraps around the weight pieces within the housing.
 17. The adjustable kettlebell of claim 15 further comprising a brace structure positioned within the housing, and a post extends from the brace structure; wherein each of the removable weight pieces comprise an opening defined therein through which the post extends, and the movable holder is a clamp that clamps onto the post.
 18. The adjustable kettlebell of claim 15, wherein the housing comprises one or more rigid sheets formed around a longitudinal axis of the kettlebell.
 19. The adjustable kettlebell of claim 15 wherein the housing comprises a bottom portion, and the bottom portion of the housing defines therein a bottom opening that extends laterally along the housing.
 20. An adjustable kettlebell comprising: a housing defining therein an interior volume that extends laterally to at least one side opening, wherein the at least one side opening is sized to receive weight plates; a post extending laterally from a structure within the housing; the weight plates each have defined therein a hole through which the post extends, and the weight plates are laterally stacked beside each other along the post and are positioned in the interior volume of the housing; a clamp positioned on the post to laterally secure the weight pieces; and a handle positioned on the housing.
 21. The adjustable kettlebell of claim 20 wherein the weight plates positioned on the post are in spaced relation to one or more interior walls of the housing.
 22. The adjustable kettlebell of claim 20 wherein the weight plates are circular, and a cross-section profile of the interior volume is polygonal.
 23. The adjustable kettlebell of claim 20 wherein the interior volume of the housing extends between two side openings at opposite ends of the housing, and a second post extends laterally from the structure in an opposite direction from the post.
 24. The adjustable kettlebell of claim 20 wherein the housing comprises one or more rigid sheets.
 25. The adjustable kettlebell of claim 24 wherein the one or more rigid sheets comprise parallel bends.
 26. The adjustable kettlebell of claim 20 wherein the housing comprises a bottom portion, and the bottom portion of the housing defines therein a bottom opening that extends laterally along the housing. 